Pic Industrial Equipment Ltd
Hayward Gordon Side Entry Tank Mixer Repair Instructions
Step 1.
Loto, ensure that the equipment to be worked on is properly locked out and tagged. Ensure that all
required safety precautions have been followed for entry into tank berm. Once at mixer try local start on
machinery to ensure mixer is de-energized.
Step 2.
Remove Guards for rear belts, Loosen belts with motor stand bolts and remove belts. Once belts are
removed remove required pulleys for work performed. Mark Location of Pulleys before removal to aid in
re-installation.
To remove pulley, loosen three bolts holding pulley to tapered hub, reinstall bolts in pushing holes to
push hub from pulley, tighten bolts in small increments alternating between bolts. Use caution not to
allow pulley to fall off shaft once loose, potential for worker to be injured from falling pulley.
Step 3.
Loosen bearing retaining ring to allow shaft to move so static seal can be engaged.
Note: New style Inner bearings mounted with sleeve, If Sleeve used sleeve locking ring needs to be
loosened.
Step 4.
Engage Static Seal on Mixer. To engage static seal first
loosen
for seal housing plate, then begin
to draw in seal housing,
evenly and in
small increments. Once all Bolts snug test seal
engagement by cracking the
line. If the vent
line does not show a seal you may try rotating the
shaft slightly and re-tightening the bolts.
Jacking Bolt
Engaging Bolt
Seal Vent
Step 5.
Remove the rear bearing housing by completely removing the
locking nut and spider. (note this nut should already be loose
from static seal engagement)
Removing the holding bolts
Insert bolts into jacking bolt holes and tighten evenly in small
increments.
Take note of the shim sizes as they set the seal location on the
shaft.
Step 6.
Remove Front bearing housing
Ensure that sleeve set screw is loosened completely
Remove the holding bolts from tank side of the bearing
housing
Insert bolting into jacking bolt holes on opposite side from
holding bolts and tighten evenly.
Step 7. Remove seal housing, use caution as seal
housing will be spring loaded and filled with fluid.
Remove vent lines and three bolts holding housing to
case. Carefully remove housing and hold seal from
shaft.
Clean housing and shaft thoroughly for new seal
installation.
Step 8. Install new seal on clean shaft
Use extreme caution when sliding seal on to shaft not
to damage rotating component shaft seal o ring.
Use approved lubricant on shaft seal o ring such as
vacuum grease
Install new stationary face into seal housing using
suitable lubricant.
Slide seal housing into place with extreme caution
when bring seal faces into contact.
Seals must me absolutely clean and dry, use fast
drying cleaner with no residue such as brake clean
Tighten housing bolts
Step 9. Re-install inner bearing housing, tighten bearing housing but do not tighten shaft sleeve set
screws
Step 10. Re-install outer bearing housing with proper shims installed, to check for proper shim thickness,
measure protrusion of shaft end before and after releasing static seal to see the amount of movement
and adjust shims to get proper shaft location and static seal running clearance.
Step 11. Release static seal evenly and slowly and ensure that mechanical seal is sealing properly, vent
seal housing to ensure that seal is flooded before start-up.
Step 12. Set locking nut on rear bearing housing, once tight set locking washer on nut
Step 13. Set shaft sleeve locking set screw on inner bearing
Step 14. Reinstall pulley and align to drive pulley, set belt tension
Step 15. Reinstall all guards and inspect for leaks and loose bolts.